High-efficiency vehicle-mounted air-conditioning system with rapid step-cooling function

A vehicle-mounted air conditioner and cascade technology, which is applied to vehicle components, air handling equipment, and irreversible cycle compressors, etc., can solve the problems of system cooling capacity and energy efficiency ratio drop, large compressor compression ratio, and slow cooling speed in the car. Achieve large cooling capacity, reduce throttling loss, and improve cooling coefficient

Active Publication Date: 2017-09-01
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency vehicle-mounted air-conditioning system with rapid cascade cooling to solve the problems of excessive compressor compression ratio, high exhaust temperature, system cooling capacity and energy efficiency in existing vehicle-mounted air conditioners under high-temperature conditions. Prominent technical problems such as sharp drop in ratio and slow cooling rate inside the car

Method used

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  • High-efficiency vehicle-mounted air-conditioning system with rapid step-cooling function
  • High-efficiency vehicle-mounted air-conditioning system with rapid step-cooling function
  • High-efficiency vehicle-mounted air-conditioning system with rapid step-cooling function

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Embodiment 1

[0020] like figure 1 As shown, the present invention provides a high-efficiency vehicle-mounted air-conditioning system with rapid cascade cooling. 6, observation mirror 7, electric liquid level regulating valve 8, liquid level sensor 9, high temperature evaporator 10, low temperature evaporator 11, fan 12, medium pressure gas-liquid separator 13, electronic expansion valve 14. Evaporating pressure regulating valve 15, low-pressure gas-liquid separator 16 and connecting pipelines. Wherein the exhaust port of the vehicle compressor 1 is connected with the inlet of the external condenser 3 through the oil separator 2; the outlet of the external condenser 3 is connected with the main road inlet of the recooler 5 , the outlet of the main road of the recooler 5 is connected to the inlet of the high-temperature stage evaporator 10 in the car through the dry filter 6, the observation mirror 7, the electric liquid level regulating valve 8 in turn; the high-temperature stage evaporato...

Embodiment 2

[0023] The vehicle compressor 1 of the present invention is a fixed-frequency rolling rotor compressor, the external condenser 3 is a parallel flow heat exchanger, and the high-temperature evaporator 10 in the vehicle is a laminated heat exchanger. The inner low-temperature stage evaporator 11 is a finned tube heat exchanger, the outside fan 4 is a variable-speed fan, and the inside fan 12 is a fixed-frequency fan. The subcooler 5 is a casing heat exchanger, the liquid level sensor 9 is a float type liquid level sensor, and the evaporation pressure regulating valve 15 is controlled by the pre-valve pressure (ie, evaporation pressure). Proportional-integral regulating valve. Other structures are the same as in Embodiment 1.

Embodiment 3

[0025] The vehicle compressor 1 of the present invention is a swash plate compressor, the outside condenser 3 is a parallel flow heat exchanger, and the high temperature evaporator 10 inside the vehicle is a finned tube heat exchanger. The inner low-temperature stage evaporator 11 is a stacked heat exchanger, the outside fan 4 is a shifting fan, the inside fan 12 is a frequency conversion fan, the recooler 5 is a flasher, and the liquid level The sensor 9 is an input liquid level transmitter, and the evaporation pressure regulating valve 15 is a proportional differential regulating valve controlled by the pressure before the valve (ie, the evaporation pressure). Other structures are the same as in Embodiment 1.

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Abstract

The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a high-efficiency vehicle-mounted air-conditioning system with a rapid step-cooling function. The high-efficiency vehicle-mounted air-conditioning system comprises a compressor, an oil separator, an outside-car condenser, an outside-car draught fan, a sub-cooler, a dry filter, an observation mirror, an electric liquid-level regulating valve, a liquid-level sensor, an in-car high-temperature-stage evaporator, an in-car low-temperature-stage evaporator, an in-car draught fan, a medium-pressure gas-liquid separator, an electronic expansion valve, an evaporating pressure regulating valve, a low-pressure gas-liquid separator and a connecting pipeline. According to the high-efficiency vehicle-mounted air-conditioning system with the rapid step-cooling function, the refrigerating capacity is large, cooling and dehumidification are rapid, and safe, reliable and high-efficiency operation can be achieved under a high-temperature operating condition; and so the high-efficiency vehicle-mounted air-conditioning system can be widely applied to all the sites adopting air-conditioners, such as automobiles, passenger cars or trucks.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a high-efficiency vehicle-mounted air-conditioning system with rapid cascade cooling. Background technique [0002] Vehicle-mounted air-conditioning system is an air conditioner equipped on a car, passenger car or truck. Its function is to adjust the temperature, humidity and air freshness in the car to improve the comfort of the drivers and passengers in the car. Compared with household air conditioners, the working environment of vehicle air conditioners has certain particularities, such as: the space in the car is narrow, the personnel are relatively dense, and the heat emitted by the human body is relatively large; The area of ​​the glass is large, and it takes a long time to receive solar radiation. The heat outside the car easily enters the room through heat conduction, heat convection and heat transfer. After the car is started, the high temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/32B60H3/02F25B1/00F25B41/00F25B41/04F25B41/20F25B41/34F25B41/40
CPCF25B1/00B60H1/00457B60H1/00485B60H1/00564B60H1/323B60H3/024F25B41/40F25B41/20Y02B30/70
Inventor 崔四齐桑翎裴华强赵登科刘恩海李海军杨凤叶
Owner ZHONGYUAN ENGINEERING COLLEGE
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